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don't think that good idea because would run 1600 ghz 24GB not 1867 that if install 16GB of 1867 plus memory come with the mac which run 1600.Okay so my tricked out iMac is ordered and should be here next week! I ordered it with 8GB and want to upgrade to 24GB; I'd just like to match to 1867MHz rather than the top end 2133MHz gear you guys have been testing out.
The only place I've found so far is here: http://www.mrmemory.co.uk/memory-ram-upgrades/apple/imac/retina-5k-27-inch-late-2015-4.0ghz-core-i7
Is there anywhere else recommended for UK delivery or is this okay to order? Anyone tried it yet?
Thanks all!
@ericv if you have the time and inclination to do so, would it be possible to test a pair of sticks from each of your 3 sets of memory, installed alongside the original Apple memory? Others on this thread have reported a slowdown when mixing faster RAM with the Apple RAM due to mismatched timing. A quick look at what System Information / About This Mac reports would be excellent.
Still trying to figure out which set I want to get to pair with the original 8 GB from Apple, not to mention which may be in stock!
Here you go, both benchmarks taken after a fresh reboot.
32GB 2133MHz CL11
View attachment 596047
24GB - 16GB 2133MHz & 8GB 1866MHz
View attachment 596046
View attachment 596048
View attachment 596049
Thanks for this information. Question for you- for someone who does a lot of photography editing (Photoshop and LR), no gaming do you think it is worth it to get the fast 2133 ram versus the 1867 ram? I see the numbers and it looks like there isn't a huge difference but then I looked at the memory performance which looks better with the faster ram. I'm just not sure how significant these numbers are when it comes to my usage if the computer. Thanks so much.
Thanks, this is excellent. So at least we know that the 2133 MHz Kingston RAM will not cause the memory controller to slow everything down to 1600 MHz when paired with the Apple RAM. That's good news.Here you go, both benchmarks taken after a fresh reboot.
32GB 2133MHz CL11
View attachment 596047
24GB - 16GB 2133MHz & 8GB 1866MHz
View attachment 596046
View attachment 596048
View attachment 596049
Which of these do you recommend guys? I'm a bit lost and need to get sorted.
Kingston 8 GB 2133 MHz DDR3L CL11 1.35 V HyperX Impact SODIMM Memory Module - Black https://www.amazon.co.uk/dp/B00UVOVV12/ref=cm_sw_r_awd_FqZlwb3VFHPDD
- Or -
HyperX Impact Black 16 GB 1866 MHz DDR3L CL11 SODIMM Laptop Memory Kit (2 x 8 GB) https://www.amazon.co.uk/dp/B00VMCUBK4/ref=cm_sw_r_awd_duZlwb6HWQ5EK
The confusing thing is they are both CL11, however the price for maxing out to 32GB is so close considering one is 1867mhz and the other 2133mhz?
I have 8GB stock in my new iMac, I'm happy to either go 32GB and just sell the 8GB or just grab 16GB for a total of 24GB. Budget is around £150 - £200. I just want whatever option to be good and to match.
Edit: I'm in the UK. Also feel free to direct me to something I've not seen yet.
Which of these do you recommend guys? I'm a bit lost and need to get sorted.
Kingston 8 GB 2133 MHz DDR3L CL11 1.35 V HyperX Impact SODIMM Memory Module - Black https://www.amazon.co.uk/dp/B00UVOVV12/ref=cm_sw_r_awd_FqZlwb3VFHPDD
- Or -
HyperX Impact Black 16 GB 1866 MHz DDR3L CL11 SODIMM Laptop Memory Kit (2 x 8 GB) https://www.amazon.co.uk/dp/B00VMCUBK4/ref=cm_sw_r_awd_duZlwb6HWQ5EK
The confusing thing is they are both CL11, however the price for maxing out to 32GB is so close considering one is 1867mhz and the other 2133mhz?
I have 8GB stock in my new iMac, I'm happy to either go 32GB and just sell the 8GB or just grab 16GB for a total of 24GB. Budget is around £150 - £200. I just want whatever option to be good and to match.
Edit: I'm in the UK. Also feel free to direct me to something I've not seen yet.
I got these (also based in the UK): http://www.amazon.co.uk/Kingston-HyperX-Impact-SODIMM-Memory/dp/B00NTQ0GOM/ref=pd_sim_sbs_147_3?tag=macr0e-21&ie=UTF8&refRID=1B5FKS7ZY4VBCWYAPSA8&dpID=418Ksp0Lp8L&dpSrc=sims&preST=_AC_UL160_SR160,160_
32GB total...
should be getting my iMac today and also the RAM delivered today too... hopefully it all works out as I agree, it's confusing.
Nope... It would propably run @1600 MHz CL10 See post #275Will these work? At full speed? With the stock ram?
https://www.proshop.no/RAM/Ballisti...risjakt&utm_medium=cpc&utm_campaign=pricesite
You can try, if the machine boot, the RAM will probably run @1333 MHz CL9sorry for going slightly off topic:
so i've ordered some of the hyperx 2133 for my new retina 27" imac. rather than sell on the 2 x 4GB apple ram that's coming with my 27" retina imac, would I be able to use it in my early 2011 macbook pro (which has two so-dimm slots)? it specifies PC3-10600 DDR3 1333 MHz type RAM on the apple website for the 2011 MBP, but could I use the PC3-14900 DDR3 1867 MHz type RAM that I'm replacing in the imac, given it's still 204 pin, so-dimm etc? And if so, what speed/latency would it clock down to?
Awesome, can you post to let me know how it goes?l and if it all runs at the advertised speeds. Really appreciate it!
received iMac and RAM today...
installed it and system profiler shows it up all ok.
don't really know how to prove it runs at advertised speeds, but it's been going the whole day without issues
been running FCPX and iMovie and LR Raw photo processing all simultaneously to see how the iMac copes... Fans do come on for a short time (noticeable noise level), but then die down once a process completes.
go for it